The Pantnagar police have registered an FIR against a 76-year-old woman and her two grandsons for allegedly cheating her son, a BMC supervisor, in a Rs 17 lakh property dispute in Ghatkopar East.

The complaint was filed by a 54-year-old supervisor attached to the BMC’s K-East ward and pertains to a 12x22 ft room at Ramabai Ambedkar Nagar. The complainant told police he bought the room in 1995 through an Agreement for Transfer after paying Rs 80,000 to his sister.